Study on domestic sewage treatment with hydrolysis acidification and construicted wetland

摘要

This paper validated the feasibility of the treatment of low concentration sewage with hydrolysis & acidification and constructed wetland through full-scale engineering study of this process. The removal and convertion regulation of BOD, COD, SS is argued in this paper. Average 30% of organic pollutants is removed and the ratio of BOD/COD of sewage is dramatically increased in hydrolysis and acidification tank. The COD of efluent from constructed wetland is under 50 mg/l. The running result of the full scale wastewater plant shows that hydrolysis & acidification and artificial wetland is suitable process for treatment of low concentration sewage .with high efficiency and Sow energy needed.